SiTime Clock Generators

Flexible, Multi-Output MEMS Clock Generators

SiTime’s programmable MEMS clock generators support wide frequency synthesis and superior jitter performance across multiple outputs. Perfect for high-speed FPGA, SoC, and ASIC applications, these devices simplify clock tree design with unmatched programmability.

 

 

 

Products

 

 

Cascade™

Industry’s most versatile MEMS clock generator

  • SiT95141: Quad PLL, 10-output MEMS clock generator
  • SiT95145 / SiT95148: 10-output programmable jitter cleaner + generator
  • SiT95312 / SiT95315 / SiT95316 / SiT95317: Advanced Cascade II MEMS clock generators with differential outputs and jitter cleaning
  • SiT95147: Network-synchronized version of Cascade (with integrated holdover and IEEE 1588 support)
  • Use Cases: Data center switching, telecom base stations, FPGA/SoC clock trees, timing-sensitive Ethernet & PCIe applications

 

 

 

Chorus™

Low-noise, application-tuned programmable clocks

  • SiT95210 / SiT95211: Low jitter MEMS clock generators
  • SiT95314: Dual-PLL with output skew control (good fit for Chorus-type deployment)
  • SiT5801: Also featured in low-noise applications as a jitter cleaner for 5G and PCIe Gen6
  • SiT5376 / SiT5377: Used in conjunction with Chorus-type architectures for SerDes applications
  • Use Cases: Optical modules, 100/400/800GbE links, SerDes reference clocks, PCIe Gen 4/5/6 signal integrity

 

 

 

Atna™

Compact, cost-effective solutions for networking and industrial

  • SiT9501: Compact, differential output MEMS clock generator
  • SiT91281 / SiT91283 / SiT91285 / SiT91288: Automotive-grade, low-output count clock generators
  • SiT30100: Small-footprint clock generator with integrated resonator and temp sensor (ideal for handheld and mobile)
  • Use Cases: Industrial automation, embedded compute, networking cards, mobile/consumer electronics

 

 

 

Key Capabilities

  • Multiple outputs (up to 12)
  • Up to 1 GHz frequency synthesis
  • Sub-100 fs jitter performance
  • Programmable rise/fall times

Applications

  • FPGA clock trees
  • Automotive Ethernet
  • 5G base stations
  • PCIe
  • SerDes
  • High-speed storage

 

 

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